The Mariners added some minor-league bullpen depth and claimed left-hander Dario Alvarez off of waivers from the Chicago Cubs, the team announced on Wednesday.
Alvarez was optioned to Triple-A Tacoma and he’ll report to minor league camp on Thursday, upping the Mariners’ 40-man roster to 38 players with a week remaining in spring training.
Alvarez appeared in 16 1/3 innings for the Rangers last season, striking out 17 while posting a 2.76 ERA. Alvarez is 29 years old and appeared in parts of the past four major league seasons. He’s 6-1 with a 5.06 ERA in 56 appearances, all out of the bullpen with a solid strikeout rate – 11.